acceleration

Elizabeth James and her husband stand beside their new Toyota Prius - unaware of the nightmare she would experience behind its wheel.

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acceleration

Elizabeth James and her husband stand beside their new Toyota Prius - unaware of the nightmare she would experience behind its wheel.

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acceleration

She was driving on Interstate 70 outside Denver three years ago when her Toyota Prius suddenly shot up to 90 miles an hour and wouldn't stop, even though she says her foot hadn't even been on the accelerator.

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acceleration

Elizabeth drove her Prius into a field and crashed it into a river to finally stop the runaway car, possibly saving her life.

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acceleration

There was extensive damage to the Toyota Prius sustained in the crash.

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acceleration

Elizabeth said she was lucky to walk away from the crash alive.

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acceleration

California Highway Patrol officer Mark Saylor was driving a 2009 Lexus, on loan from his dealer, with his wife, daughter and brother-in-law in August 2009 along a highway outside of San Diego.

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acceleration

Saylor's brother-in-law, Chris Lastrella, was also in the car and called 911 when the car took off on them. Chris told a 911 operator that the accelerator was stuck and the brakes were not working.

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acceleration

All four people died after the Lexus hit a vehicle, crashed into an embankment and burst into flames.

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acceleration

Toyota said the accident was caused by a wrong-sized, all-weather rubber floor mat in the car that was pushed down and caught the gas pedal, holding it down.

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acceleration

Paul and Saskia McLean were driving their Toyota Highlander vehicle in the Mojave desert when they say it suddenly surged to over 95 miles an hour.

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acceleration

Paul McLean's young daughter was in the car with them. The family survived because, they say, they were in the middle of the desert and were eventually able to get the vehicle under control.

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acceleration

Paul McLean's young son was also in the Toyota Highlander with his family when the vehicle took off. Paul told ABC News that he is certain the floor mat was not pushed underneath the gas pedal at the time of the incident.

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accident

Bulent Ezal and his wife were driving their 2005 Toyota Camry in central California when disaster struck.

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accident

Bulent Ezal says the Toyota Camry suddenly took off, causing them to plunge over this 100 foot cliff into the Pacific ocean.

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accident

Toyota says the accident was caused by Ezal mistakenly pushing the gas pedal. Ezal strongly denies this and says his foot was "absolutely, positively on the brake."

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accident

Bulent Ezal, seen here being rescued, barely survived the accident, but his wife of 46 years was killed.